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diff --git a/upstream/fedora-rawhide/man3/iswdigit.3 b/upstream/fedora-rawhide/man3/iswdigit.3 new file mode 100644 index 00000000..07226801 --- /dev/null +++ b/upstream/fedora-rawhide/man3/iswdigit.3 @@ -0,0 +1,95 @@ +'\" t +.\" Copyright (c) Bruno Haible <haible@clisp.cons.org> +.\" +.\" SPDX-License-Identifier: GPL-2.0-or-later +.\" +.\" References consulted: +.\" GNU glibc-2 source code and manual +.\" Dinkumware C library reference http://www.dinkumware.com/ +.\" OpenGroup's Single UNIX specification http://www.UNIX-systems.org/online.html +.\" ISO/IEC 9899:1999 +.\" +.TH iswdigit 3 2023-10-31 "Linux man-pages 6.06" +.SH NAME +iswdigit \- test for decimal digit wide character +.SH LIBRARY +Standard C library +.RI ( libc ", " \-lc ) +.SH SYNOPSIS +.nf +.B #include <wctype.h> +.P +.BI "int iswdigit(wint_t " wc ); +.fi +.SH DESCRIPTION +The +.BR iswdigit () +function is the wide-character equivalent of the +.BR isdigit (3) +function. +It tests whether +.I wc +is a wide character +belonging to the wide-character class "digit". +.P +The wide-character class "digit" is a subclass of the wide-character class +"xdigit", and therefore also a subclass +of the wide-character class "alnum", of +the wide-character class "graph" and of the wide-character class "print". +.P +Being a subclass of the wide character +class "print", the wide-character class +"digit" is disjoint from the wide-character class "cntrl". +.P +Being a subclass of the wide-character class "graph", +the wide-character class +"digit" is disjoint from the wide-character class "space" and its subclass +"blank". +.P +Being a subclass of the wide-character +class "alnum", the wide-character class +"digit" is disjoint from the wide-character class "punct". +.P +The wide-character class "digit" is +disjoint from the wide-character class +"alpha" and therefore also disjoint from its subclasses "lower", "upper". +.P +The wide-character class "digit" always +contains exactly the digits \[aq]0\[aq] to \[aq]9\[aq]. +.SH RETURN VALUE +The +.BR iswdigit () +function returns nonzero +if +.I wc +is a wide character +belonging to the wide-character class "digit". +Otherwise, it returns zero. +.SH ATTRIBUTES +For an explanation of the terms used in this section, see +.BR attributes (7). +.TS +allbox; +lbx lb lb +l l l. +Interface Attribute Value +T{ +.na +.nh +.BR iswdigit () +T} Thread safety MT-Safe locale +.TE +.SH STANDARDS +C11, POSIX.1-2008. +.SH HISTORY +POSIX.1-2001, C99. +.SH NOTES +The behavior of +.BR iswdigit () +depends on the +.B LC_CTYPE +category of the +current locale. +.SH SEE ALSO +.BR isdigit (3), +.BR iswctype (3) |